Thermodynamic study of binary and ternary systems containing CO2+impurities in the context of CO2 transportation

New experimental density data and derived thermophysical properties of carbon dioxide – Sulphur dioxide binary mixture (CO2 - SO2) in gas, liquid and supercritical phases from 273 K to 353 K and at pressures up to 42 MPa

“…However, it is suggested that these values should be compared to the directly measured heat capacities, e.g., measured C p using adapted calorimeters. of at least 0.1MPa, which is higher than experimental uncertainty of pressure using the static analytical method [25].…”

“…The only available data for this system is reported by Caubet [23] in 1904. A comprehensive thermodynamic behaviour of CO 2 -SO 2 mixture was studied experimentally by Coquelet and co-workers [24], [25] In this work, the densities of approximately 95 mol% CO 2 with 5 mol% SO 2 were measured using a Vibrating Tube Densitometer (VTD) in the gas, liquid and supercritical phases. The measurements were carried out at five isotherms 273, 283, 298, 323 and 353 K at pressures up to 42 MPa.…”

The phase equilibrium and density studies of the ternary mixtures of CO 2 + Ar + N 2 and CO 2 + Ar + H 2 , systems relevance to CCS technology

“…Regarding the effects of different permanent gases on the molar density of CO2 mixtures, the difference between Ar and N2 is insignificant for 10% impurity mixtures, whereas the density differences between mixtures containing 10% H2 and 5%Ar + 5%N2 as the impurities can be clearly observed. (Xu et al, 1992a, b) density 323-573 20-100 0.1-0.8 271 (Seitz et al, 1996) CO2 + Ar + O2 VLE 253-293 2.3-7.6 0.54-0.99 28 (Coquelet et al, 2014) .22 dp 0.0496 0.0496 288.99 6.38 dp 0.0102 0.0102 295.40 6.29 dp 0.0495 0.0495 290.50 a 6.60 dp 0.0101 0.0101 297.06 a 6.53 dp 0.0495 0.0495 293.02 a 7.10 dp 0.0101 0.0101 299.08 a 6.81 dp 0.0500 0.0500 294.07 7.28 dp 0.0100 0.0100 301.07 a 7.22 dp 0.0494 0.0494 295.03 7.57 dp 0.0100 0.0100 302.09 a 7.45 dp 0.0496 0.0496 295.55 7.77 dp 0.0100 0.0100 302.31 7.63 dp 0.0500 0.0500 296.08 7.83 dp 0.0100 0.0100 302.50 d 7.66 dp c bp and dp represent bubble-point and dew-point, respectively. d Measured by using Configuration A Table 3 Experimental and calculated maxcondentherm temperature (Tmax) on the p-T phase envelop.…”

“…Recently, much attention has been given to studies of the thermodynamic properties, such as vapour-liquid equilibrium (VLE) and density of CO2 mixtures with impurities. A number of research groups have studied some of these key binaries, such as CO2/N2 (Fandino et al, 2015;Mantovani et al, 2012;Tenorio et al, 2015;Westman et al, 2016b), CO2/Ar (Coquelet et al, 2008;Köpke and Eggers, 2007;Mantovani et al, 2012;Yang et al, 2015a), CO2/H2 (Cipollina et al, 2007;Fandino et al, 2015;Sanchez-Vicente et al, 2013;Tenorio et al, 2015), CO2/O2 (Mantovani et al, 2012;Westman et al, 2016a), CO2/SO2 (Coquelet et al, 2014;Köpke and Eggers, 2007), CO2/CO (Cipollina et al, 2007), CO2/H2S (Chapoy et al, 2013a) and CO2/H2O (Hou et al, 2013;Valtz et al, 2004), which either focused on the binaries with an insufficient amount of data under the conditions relevant to CCS or aimed at reducing experimental uncertainties. A comprehensive data survey of the available thermodynamic properties of binary systems with CO2 can be found in the monograph by Kunz et al (2007) and in the recent reviews by Munkejord et al (2016) and Li.…”

Calculation of the phase envelope of multicomponent mixtures with the bead spring method

“…This mixture has a closed loop isoplethic phase envelope with only one critical point. Experimental data for this mixture are taken from Coquelet et al 43 The CPU times for the calculation of approximately 3200 phase equilibrium points using SRK and PR equations of state were in the order of around 0.4 s in each case. The total CPU time needed for the calculation of approximately 3400 equilibrium points on the phase envelope using PC-SAFT EoS in an Intel-Haswell architecture core i7 (2.7-GHz base frequency) mobile processor was approximately more than an order of magnitude higher.…”